Platform rocking-chair



A. B. STEVENS.

PLATFORM ROCKING CHAIR.

No. 461,648. Patented O0t.20, 1891.

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Unirnn STAT-Es ATENT Erica.

ASHER B. STEVENS, OF BROOKLYN, NEW YORK ASSIGNOR TO THE ROCKER SPRING COMPANY, OF CHICAGO, ILLINOIS.

PLATFORM ROCKING-CHAIR.

SPECIFICATION forming part of Letters Patent No. 461,648, dated October 20, 1891, Application filed Ianuary 3, 1888. Serial No. 259,567. (No model.)

To aZZ whom it may concern:

Be it known that I, ASHER B. STEVENS, a citizen of the United States, residing at Brook lyn, in the county of Kings, in the State of 5. New York, have invented a new and useful Improvement in Rocking-ChairAttachments,

of which the following is a specification.

The objectof my invention is to make a spring attachment for platform rocking- 1o chairs which can be attached directly to the wooden bars extending across from the rockers or base-rails; and the invention consists in the features and combinations hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a longitudinal section of parts of a platform rocking-chair, particularly showing the inside of one of the rockers and base-rails; Fig.

2, a cross-section taken in a line just back or front of the spring attachments; Fig. 3, the same .as Fig. 2, except that it shows the springs secured to the outside of the crossbar instead of in slots therein; Fig. 4,amodification of the cross-bar, showing it in sections slotted to render it adjustable lengthwise; Fig. 4 an elevation of aportion of thedevice shown in Fig. 4; Fig. 5, a perspective view of the fastening devices used to connect the spring to the cross-bar shown in the first three figures; and Figs. 6 and 7, modifications of the spring, particularly as to its manner of attachment to the cross-bars. I

A is the rocker; 'B, the base-rail; C, the cross-bars; D, brackets for secnrin g the crossbars to the rockers and base-rails; E, the conheating-springs, and F the devices for securing the springs to the cross-bars.

My invention is particularly intended to be applied to platform rocking chairs which have cross bars or pieces extending from one side to the other. In this style of chair there I is usually one wooden cross-bar extending from the inside of one base-rail to the inside of the other and another wooden cross-bar extending from the inside of one rocker to the inside of the other. Between these crossbars I interpose two or more spiral springs of suitable dimensions and strength to connect the rocking and base parts of the chair together. These springs may be secured at their ends to the cross-bars by spirally-grooved caps or hanging brackets, the grooves being adapted to receive the end coils of the springs, and the outer ends of these caps may be inserted in slots in the'cross-bars and firmly se- 5 5 cured therein by screws, pins, or otherwise. As shown in Figs. 1 and 2, they are inserted in slots in the cross-bars and secured therein by screws. As shown in Fig. 3, they are secured to the side of the cross-bars by screws, and, as shown in Figs. 6 and 7, they are secured by pins passing through looped portions of the spring or parts used in connection therewith; but the ends of the springs maybe secured to the cross-barsin any other convenient way-as, for instance, by having the terminal coil of the spring bent and looped, so as to pass up or down through a hole or slot in the cross-bar, where it may be held by a pin passed under or through its looped portion or otherwise. The cross-bars are preferably secured to the rockers and base-rails by right-angled brackets; but they may be fitted directly into recesses in said parts, and they may be made adjustable lengthwise, so as to adapt them to different widths of chairs or different positions in the same chair, as desired.

In Figs. 1 and 45 I have shown one form of adjustable cross-bar, consisting of a main bar So having a slotted extension-piece at each end, the main bar and slotted pieces being connected together by suitable nuts and bolts, so as to allow of the slotted pieces being moved back and forth to-increase and diminish the length of the cross-bar. Being connected at their ends by right-angled brackets, as above described, they are capable of being readily detached from the chair, and of course this enables the ohair to be readily taken apart for shipment or other purposes. Each of these cross-bars is of course adapted to have one end of each spring rigidly fastened to it, as above described. Two connecting-springs being secured, as above, to the respective crossbars at off-center p0ints-that is, between the center and rocker at either side-form a firm and secure connection between the upper and lower parts of the chair, and at the same time have the efieet of facilitating or regulating the rocking motion of the seat part.

Although I have shown only two springs located, respectively, at points about half-way between the center and the rocker, still I desire it to be understood that I intend to use more springs, it found convenient, and to locate them at; other points-as, for instance, closer to the rockers and base-rails-if such change in location appears to be desirable.

I claiin- 1. In combination with the rockers and baserails of a platform rockingchair, two bars extending across the inside of the chair, brackets detachably securing the ends of the. cross-bars to the rockers and base-rails, and spiral springs having their ends rigidly secured to the cross-bars, respectively, to form the connection between the seat and base parts of the. chair, substanliall y as described.

2. In combination with the rockers and base-rails of a plat form rocki n g-chai r, two bars extending across the inside of the chair formed of dilierent parts and adjustable lengthwise,

ASHER l3. STEVENS. Witnesses:

EPHRAIM BANNING, GEORGE S. Parson. 

